
Same Outstanding ePTFE-Free Performance, New Identity for SS 2026
eVentĀ® Fabrics, a global leader in waterproof, breathable, and windproof fabric laminates, has announced the rebranding of its plant-based, ePTFE-free laminates. Formerly known as BIO Waterproof and BIO Windproof, the products have been renamed stormST and windstormST for the Spring/Summer 2026 season.
This strategic update aligns with eVentās ongoing brand evolution, reinforcing its position as a premier supplier of sustainable, high-performance laminates for outdoor, activewear, fashion, hunting, fishing, golf, cycling, and footwear markets. The rebranding follows the companyās newly introduced tagline, āDefy the Elements,ā emphasizing superior weather protection and sustainability.
Refining Brand Identity for Clarity and Market Differentiation

Rainwater droplets on blue fiber waterproof fabric. Blue background.
āWhen we introduced eVent BIO in 2016, the market was still adapting to plant-based laminates,ā said Chad Kelly, President of eVent Fabrics. āOver time, weāve seen ābioā used in many marketing materials, which has diluted its impact. To ensure clear differentiation for both brands and consumers, we have updated our product names to stormST and windstormST. These names align seamlessly with our product architecture and better emphasize our commitment to weather protection and sustainability.ā
Starting February 2025, eVent will phase out the BIO branding across all product categories, including footwear, which will now fall under the stormST name. The transition will be carefully managed to support brand partners, ensuring a seamless shift while allowing existing BIO-labeled products to remain in the market through mid-2026 to accommodate sales cycles.
Official Debut at Performance Days Munich
eVent will unveil stormST and windstormST to the materials sourcing industry at Performance Days Munich in March 2025. Visitors can learn more about these cutting-edge, ePTFE-free, plant-based membranes at booth Q12 or schedule a meeting via [emailĀ protected].
About eVent Fabrics
Founded in 1999, eVentĀ® Fabrics revolutionized the industry with the first air-permeable, 100% waterproof membrane and continues to lead with sustainable, high-performance textile innovations. Renowned for its breathable waterproof solutions, eVent is committed to delivering reliable laminates that help users defy the elements. Trusted by leading global brands, eVent sets the benchmark for sustainability and performance in outerwear, footwear, and accessories. Visit www.eventfabrics.com for more information.